128 BOTANY. with 21-25 rather sharp ribs; the large linear-oblong areolae (very wooUy when young) bear three kinds of spines, first, 4 very stout, annulated, reddish ones, 1^-2^' long, the 3 upper ones straight, the lower one hooked; second, 3-5 lower and usually 3 uppermost spines, slender, but straight, stiff, and annulated, of reddish color; third, 12-20 whitish, bristle-like, flexuous, lateral spines: flowers 2-2^' long, 1^ wide, yeUow, outside greenish with purple-brown; ovary and fruit imbricately covered with numerous (50-60) cordate or reniform crenulate sepals; sepals of tube oblong, ciliate; petals broadly linear, crenate, bristle-pointed; style deeply divided into 12-18 linear stigmas; seeds 1" long or over, reticulate or shallow-pitted.—Southern New Mexico. Var. Le Contei. (E. Le Contei, Engelm.)—At last clavate from a slender base; lower central sjjine more flattened, curved or twisted, but not hooked; flower rather smaller and with fewer parts.—This is the Western form, from South Utah and Arizona to and beyond the Colorado River. Dr. Rothrock collected, at Camp Bowie, Ariz., a peculiar form (492), which may repre¬ sent another variety, decipiens: globose, 1° in diameter; spines shorter and fewer, no straight spines above the 4 central ones, none longer than 1-1^ inches; 10-15 thin flexuous spines on side and upper end of areolae; only 20-25 sepals on ovarj^ EcHiNOCACTUS POLYCEPHALUs, Engelm. & Bigel (see Watson in Bot. King's Expl. 117).—From the Mojave region to Southwestern Utah. The numerous spiny-bristly sepals, and the linear, acute, yellow petals almost hidden in a dense cottony wool EcHiNOCACTUS Whipplei, Engelm. & Bigel; Watson, I. c. 116.—On the Lower Colorado River and northward into Utah. Ceeeus (Echinoceeeus) Engelmanni, Parry; Watson, I. c. 117.— Throughout Arizona and into Utah and Southern California. Flower purple, open only in mid-day sunshine.—Camp Bowie (1002), Mrs. Major Sumner. Flower only. May be this or an allied species. Ceeeus (Echinoceeeus) phceniceus, Engelm.—Globose or oval heads, 2-3' high, about 2' in diameter, several to a great many (sometimes over 100) from one base, 8-11-ribbed; 8-15 slender, but straight, stiff, and very brittle spines in each bunch, J-1 J' long, 1-3 of them more central and